Machine used in construction twine heddle



Nov. 1, 1938. L ANDREWS E AL 2,134,692

MACHINE USED IN CONSTRUCTION TWINE HEDDLE Filed Sept.'27, 1955 8Sheets-Sheet l Nov. 1, 1938. I. ANDREWS ET AL MACHINE USED INCONSTRUCTION TWINE HEDDLE 3mm. J6me flizdi ews flazzafid 0. C0 Zara I aW Filed Sept.

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Nov. 1, 1938.

MACHINE USED IN CONSTRUCTION TWINE HEDDLE Filed Sept. 27, .1935 8Sheets-Sheet. 6

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MACHINE USED IN CONSTRUCTION TWINE HEDDLE Fil ed Sept. 27, 1935 8 Sheets-Sheet 8 Patented Nov. 1, 1938 UNITED STATES MACHINE USEDINCONSTR-UCTION TWINE HEDDLE Isaac Andrews and Howard 0. Coddington,Spartanburg, S. 0., assignors to Andrews Company,

Spartanburg, S. G

Application September 27, 1935, Serial No. 42,502

7 cieimsf (o1. 28---3) .This invention relates to a machineforconstructing loom harness and more particularly to a mechanism to beinstalled on the usual twine I heddle forming machine for positioningmetal clips at the ends of the heddle bar receiving eyes of the heddles,so that the usual continuous twine harness may be cut providingindependent twine heddles foruse with the usual metal bars employed insupporting the usual steel heddles now m commonly used in weaving a finegrade of cloth.

The primary object of the invention is to provide a twine heddle harnessmade up of a plurality of independent twine heddles so that the numberof heddles per inch may be changed to 16 meet various requirements inweaving the various grades of cloth, and eliminating the necessity ofremoving the entire loom harness when a change in the texture of thecloth to be woven is to be made.

An important object ofthe invention is to provide means for engaging thetwine of the harness after it has passed through the loom harnessmachine, the twine engaging rneans holding the twine separated in such away that the clips will" be accurately positioned without danger ofclipping together more than the requirednumber of twines. V

Another object of the invention is to provide means for stretching theheddles' taut while the cups are being applied to the twine, in theformation of the supporting eyes of the heddles, thereby insuringheddlesbeing formed of uniform length. With the foregoing and otherobjects in. view, 3%. which will appear as the description proceeds, the

invention resides in the combination and arrangement of parts and in thedetails of construction hereinafter described and claimed, it beingunderstood that changes in the. precise embodiment of 40* the inventionhereindisclosed, may be made within the scope of what is claimed,without departing from the; spirit of the invention.

. Referring to the drawings: i r i Figure l is a perspective viewillustrating the 45 mechanism forming the subject matter of thisinvention as positioned on the usual loom harness forming machine.Figure 2 is a plan view thereof. W Figure 3 is a vertical sectional viewthrough 50 the machine. v i Figure 4 is a detail view illustrating thespreading fingers and means for operating the fingers. l Figure 5 is afragmental perspective view of the applied mechanism.

Figure 6 is a detail view illustrating the spreading fingers as spreadapart separating thetwines of the twine harness. i j

Figure 7 is an enlarged sectional view through 50, the: mechanism priorto the: forming. of a clip;

I'L-I'T of Figure 16.

' Figure 8 isa horizontal sectional view through the frame supportingthe forming mechanism.

Figure 9 is a vertical sectional view illustrating the cams and camplates that operate the forming mechanism. 5 Figure 10' is. a sectionalview disclosing the first step in forming a clip. 7

Figure 11 is a view illustrating the second step in forming a clip.

Figure 12 is a view illustrating the third step in forming a clip andwherein one of the forming arms has bent one side of a clip over thetwine of the heddle.

Figure 13 is a view illustrating the movement of the oppositeiformingarm in bending the opposite side of the clip.

Figure 14 is a view illustrating the positions of the forming arms inthe final bending of the clip.

Figure 15 is a sectional view through the machine illustrating theheddle stretching members as stretching a heddle prior to the forming ofa clip.

Figure 16' is: an elevational view illustrating the upper spreadingfingers.

' Figure 17 is a sectional view taken on line Figure 18 is an endelevational view illustrating one of the twine feeding worms, and fingerfor moving the twine onto the worm.

Figure 19 is a longitudinal sectional view through a portion of one ofthe worms. 7

Figure 20 is a longitudinal sectional view through one of the yieldablepresser rods.

l Figure 2f is a perspective View illustrating the worms and chains ofgearing employed in operating the worms.

Figure 22 is a sectional view through the frame and worms. l

Figure 23' is an elevational view illustrating themeans for feeding themetal ribbon of which the clips are formed. Referring to the drawings indetail, the usual twine heddle harness forming machine, is indicatedgenerally by the reference character 5, and asshown includes the usualeye forming fingers 6 and I, the twine of which the harness is formed,being indicated by the reference character A.

As previously stated, the present invention resides in the provision ofmeans on the usual twineheddle forming machine, for separating the twinew of the heddiesandclipping the ends thereof together, in the formationof the eyesof the heddles.

The means for accomplishing this result, includes parallel: worms orspirals 8,. operating in opposite: directions. andv mounted on. theframe of 5 the machine at a point where the twine heddle harness underconstruction. must pass directly thereover and in contact with the wormsThese worms or spirals 8 are formed at the forward ends ot the shafts 9that have gears Hi do:

are fingers I! that have their inner surfaces be'v-I' eled in such a waythat as the fingers rotate, they will move between adjacent heddles ofthe twine harness formed, separating the heddles and moving the heddlesinto the grooves of the worms or spirals 8, where the heddles are fedrearwardly to the clip formers.

In order that the twine heddles-will be held within the grooves of theworms, while theyare being fed through the machine, elongated inverted Ushaped guards I8 are provided, the guards being disposed directly abovethe worms in a manner to close the upper portions of the grooves of theworms or spirals. 1

The usual twine heddle harness is constructed in a continuous strip, theends of the heddles of the harness being formed by twisting the twineover the twine B which forms the ends of the individual heddles. Thetwine B extends through the clamps l9 pivotally mounted on oppositesides of, the frame of the machine at 20, for purposes to 'behereinafter more fully described.

Mounted on the frame of the machine and disposed at opposite sides ofthe upper portion of theeframe, are the clip formers which form andposition the clips in the construction of the eyes at the ends of thetwine heddles, and in view of the fact that both of these formers areidentical in construction, only one of the formers will be described indetail.

7 The metal strip or ribbon of which the clips are formed,'is fedlongitudinally of the machine and passes through longitudinal slotsformed in the guide blocks 2| that have their inner ends spaced apartand formed with shoulders 22.

Spaced from the guide blocks and disposed directly under the adjacentends thereof, is an anvil indicated byrthe reference character 23 and onwhich the clip is formed and pressed around the twine heddle near theends of the heddle under construction, forming the eyes..

. The former frame which supports the former mechanism, is indicated bythe reference character 24, and rises from the frame of themachine, theformer frame having bearings'25 in which the shaft 26 operates, whichshaft is provided withthe sprocket 21 over which the power chainoperates, the power chainbeing indicated by the reference character .28.This power chain transmits rotary movement to the shaft 26 which in turnoperates the clip forming mechanism.

On the forward end of the shaft 26 is a disk 29 formed with a guide slot30, in which the pivot pin 3| operates, the pivot pin having a headconstructed to fit within the guide slot in such a way that the head maymove freely throughout the length of the'slot.

,The pin 3! issecured to the upper end of the link 32 to which the pin33 is connected, the pin 33-beingsecured to the slide 34 that moves inthe guideway 35 formed in the front surface of the former frame.

'The former carried by the slide includes an inner member 36 and anoutermember 31, the inner member 36 having bores in which the pins 36'operate. Springs 39 are disposed in'the bores and bear against the pins,normally urging the pins downwardly. a H Stop screws 40 extend into theformer and are adapted toengage the shoulders-4| of the pins 'vance ofthe blade 42 with the result that the metallic, strip or ribbon of whichthe clips are formed, is securely held against movement while 'the metalstrip or ribbon is being cut by the blade 42.

Theinner member 36 is provided with an extension 44 disposed between theblade 42 and presser foot 43 and engages the clip being formed, bendingthe clip around the twine of the heddle, forming the heddle eye. Theouter member 31 is formed with a bore in which the pawl 45 is mounted,the pawl 45 having a notch formed in the inner end'thereof adapted toengage the upper edge of the blade 42, as shown by Figure '7 of thedrawings, restricting movement of the blade 42 in one direction and withrespect to the member 31.

One end of the pawl 45 supports the head'46 which is formed with abeveled inner 'end engaged by the cam 41 forming a part of the bar 48which is slidably mounted on the outer member 31, the upper end of thebar 48 being supplied with apin 49 adapted to engage the pin 50extending from the bar 5| when the slide 34 moves downwardly in formingthe clip.

Thus it will be seen that due to this construction, the blade 42 is heldin its extended position until the blade has cut a length of the metalstrip or ribbon, to form a clip, whereupon further downward movement ofthe slide will cause the pawl 45 to be retracted, allowing the blade 42to move upwardly within the outer member, permitting'the foot andextension to move to positions to form the clip.

The metal strip or ribbon from which the clip is formed moves over thesliding plate 52 which carries dogs 53 that engage the metal strippressing the strip against the sliding plate so that the strip'will bemoved along with the plate, or in the direction of the arrow as shown inFigure 23 of the drawings, with each movement of the plate 52; Lever 54has connection with the sliding plate 52 and moves the plate 52 in onedirection. This lever 54 is operated by the cam 55 mounted on the shaft51 there being provided a coiled spring 58 for moving the plate 52 tofeed the metal strip or ribbon.

Disposed under the former is a guide plate 58' on which the plate 59operates, the plate 59 providing a support for the fingers 60 and 6|,the latter fingers being pivotally mounted on the plate 59 to movelaterally to positions as shown by Figure 6 of the drawings, spreadingthe heddles adjacent to the heddle being supplied with clips, laterallyso that the twines of the adjacent heddles will not interfere with theoperation of the former.

As clearly shown by Figure 6, the fingers 6| are formed with cut outportions presenting inclined surfaces to be 'engaged by the stationaryrod 62 when the plate 59 is moved upwardly by the cam 63 mounted on theshaft 56. Coiled spring 64 which connects the plates, is of thecontractile type and acts to urge the plate 59 downwardly.

Operating above the fingers 60 and BI, are pivoted fingers 65 that alsohave cut-out portions presenting inclined surfaces 66 engaging thespring pressed pin 61 so that when the fingers are moved'rearwardly withtheir support, the fingers will be moved laterally separating theheddles of the harness being formed.

Shaft 56 also supports cams E and 56', and as shown, the cam 65 isarranged to operate in advance of the cam 66. The cams 65 and 66 engagethe lower ends of the vertically operating cam plates 61' and 63respectively, which operate in the guide member 69 secured under thebody of the machine. The cams Ill and I! operate through an openingformed in the base of the machine and contact with the upstanding ends12 of the plates 13 which slide in the guide-ways M formed in the bodyof the machine.

Contacting with the ends 12 of the plates I3, are pins that have theirouter ends engaging the adjusting screws l6 carried. by the arms l1pivotally mounted on the frame of the machine at T8, the arms havingtheir forward ends connected to the forming arms 19 and Bil in such away that as the arms 11 are operated, the members it and Bi] slidewithin their guide-ways to accomplish the purpose of the invention.

The strokes of the forming arms 19 and iii are regulated by the screws8! that extend through the arms fl and engage the post 82 forming a partof the bracket that supports the arms ll. Secured to the adjacent endsof the arms H is a coiled. spring 83 which normally draws the ends ofthe arms with which the spring is connected, towards each other,resetting the forming arms and moving the mechanism to a position foranother operation.

Cam grooves 84 are formed in the upper surfaces of the forming arms 19and as, which cam grooves accommodate the cams 85 so that when theforming arms 19 and 80 move under the cams 85, the forming arms I9 and8!! will be moved downwardly against the action of the springs 86supported directly under the arms 19 and 3B, in a manner to press theclip into shape.

Assuming that the forming arms 19 and Bil are in a position as shown byFigure 10 of the drawings, and the blade 42 has cut a length of thestrip. As the extension 44 presses the length of metal out, downwardlyonto the anvil, the length of metal is bent into U formation. Theextension A l now moves upwardly, and the forming arm 19 now movesinwardly pressing one side of the U shaped clip downwardly intoengagement with the twine heddle as shown by Figure 12.

With further movement of the machine, the cam 65 comes into play andmoves the forming arm 86 towards the forming arm 19 with the result thatthe opposite side of the length of metal cut, is bent inwardly as shownby Figure 13.

As the forming arm 80 contacts with the forming arm 19, the forming arm8!! moves to a position to complete the clamping operation or theoperation wherein the clip is pressed into close engagement with thetwine heddle. It will of course be seen that when the forming arm. 89

completes the clip, the forming arm 19 has been returned to its normalinactive position.

After the loom harness has been completed and passed through themachine, the portions of the heddles beyond the supporting eyes thereofare out in any suitable manner, providing a plurality of twine heddleswhich may be arranged on the usual heddle supporting bars of a loom toprovide a harness of any desired number of heddles, and providing aharness wherein the number of heddles may be increased or decreased, atthe will of the operator.

What we claim is:

1. An apparatus for forming twine loom harness into individual twineheddles, including an anvil, means for feeding a metal strip to theanvil, worms adapted to feed the loom harness to the anvil, means forcutting a length of metal from the metal strip, and means for bendingthe length of metal cut from the strip, around the heddles at the endsof the heddles, forming eyes at the ends of the heddles, whereby theharness may be cut into individual twine heddles.

2. An apparatus for forming twine loom harness into individual twineheddles, including an anvil, means for feeding a strip of metal to theanvil, means operating above the anvil for holding and cutting a lengthof metal from the metal strip and forming the length of metal cut into asubstantially U shaped clip, means for feeding the twine loom harnessthrough the machine and successively stopping the heddles over theanvil, and means for bending the clips around the ends of the heddlesforming eyes, whereby the harness may be cut providing individual twineheddles.

3. An apparatus for applying metal clips to the heddles of twine loomharness. including an anvil, worms forming a part of the apparatus, saidharness adapted torun in the grooves of the worms, feeding the harnessto the anvil, means for holding the harness in the grooves againstdisplacement, and means cooperating with the anvil for bending the clipsaround the heddles forming eyes at the ends of the heddles.

4. A device for applying metal clips to the heddles of a twine loomharness, forming eyes at the ends of the heddles, said device includingan anvil, means for feeding the heddles to the anvil, means for feedinga length of wire to the anvil to be cut into clip lengths, verticalmovable bending members adapted to bend the clip,

into U formation, bending members moving towards each other andv adaptedto bend a clip therebetween, and means for moving one of the bendingmembers in advance of the other bending member whereby a clip is bentaround the heddle, securing the strands of the heddle together andforming eyes at the ends thereof.

5. A device for applying metal clips to the heddles of a twine loomharness, forming eyes at the ends of the heddles, said device includingbending members adapted to bend the clips around adjacent twines of theheddles, forming eyes, worms adapted to feed the twines to the bendingmeans, elongated inverted U-shaped guards disposed above the worms andcontacting with the worms, and said guards adapted to hold the twines incontact with the worms as the twines are fed to the bending members.

6. A device for applying metal clips to the heddles of a twine loomharness, forming eyes at the ends of the heddles, said device includingclip bending members, worms adapted to feed the twine of the heddles tothe clip bending members, and fingers on the ends of the worms andadapted to engage the twine of the heddles, directing the twine to theworms.

7. A device for applying metal clips to the heddies of a twine loomharness, forming eyes at the ends of the heddles, said device includingclip bending members adapted to bend clips around adjacent twines of theharness providing eyes, stretching members adapted to engage the twineof the heddles pressing the twine into engagement with the bendingmembers, and means for feeding the clips to the heddles.

ISAAC ANDREWS.

HOWARD 0. CODDINGTON'.

